Chickenmans guides are very specific and on th esame line he gave you different files that it could be called. So I wiuld have said that you have missed a step out out.
Under Step 16 it says that you should have a number of files. Do you? If so is one of the others called bbMPEG_video_01.mpg?
When finished you will have in the default folder you selected, about 20-30+ files. We need only 2 of these files, the Video file Encoded_Video_CCE_PAL.mpv or Encoded_Video_CCE_NTSC.mpv (or Pulldown_Encoded_Video_NTSC.mpv if it exists) and the Audio file Extracted_Audio_1.ac3 or Encoded_Audio_1.mp2
The bbMPEG_video_01.mpg file should be played (for example with WinDVD) to check that the audio is in sync, the correct aspect ratio has been maintained and that the whole AVI encoded ok without loss of picture or audio from start to end.
I'll move this to the Video (e.g. MPEG-4), (S)VCD Editing and Authoring Forum so that Chickenman can help you futher.